Image Galleries: Jean Self-Trail miscellaneous
Paleogene: Toweius; Toweius magnicrassus
Imaging Technique: LM
Image Galleries: Lower Miocene helicoliths
Neogene: Helicosphaera; Helicosphaera perch-nielseniae
Paleogene: Helicosphaera; Helicosphaera perch-nielseniae
Imaging Technique: LM
Extant taxa: Helicosphaera
Image Galleries: Lower Miocene helicoliths
Neogene: Helicosphaera; Helicosphaera obliqua
Paleogene: Helicosphaera; Helicosphaera obliqua
Imaging Technique: LM
Extant taxa: Helicosphaera
Image Galleries: Lower Miocene helicoliths
Neogene: Helicosphaera; Helicosphaera mediterranea
Paleogene: Helicosphaera
Imaging Technique: LM
Extant taxa: Helicosphaera
Image Galleries: Lower Miocene helicoliths
Neogene: Helicosphaera; Helicosphaera ampliaperta
Paleogene: Helicosphaera
Imaging Technique: LM
Extant taxa: Helicosphaera
Image Galleries: Lower Miocene sphenoliths; Sphenolithus
Neogene: Sphenolithus; Sphenolithus belemnos
Paleogene: Sphenolithus
Imaging Technique: LM
Image Galleries: Lower Miocene sphenoliths; Sphenolithus
Neogene: Sphenolithus; Sphenolithus belemnos
Paleogene: Sphenolithus
Imaging Technique: LM
Image Galleries: Lower Miocene sphenoliths; Sphenolithus
Neogene: Sphenolithus
Paleogene: Sphenolithus
Imaging Technique: LM
Image Galleries: Lower Miocene sphenoliths; Sphenolithus
Neogene: Sphenolithus
Paleogene: Sphenolithus
Imaging Technique: LM
Image Galleries: Lower Miocene sphenoliths; Sphenolithus
Neogene: Sphenolithus; Sphenolithus heteromorphus
Paleogene: Sphenolithus
Imaging Technique: LM